Lip & Spur Wood Drill Bit Set, 5 Piece 4-10mm - Faithfull 50199, The Faithfull Brad Point Wood Drill Bits are the preferred cutting tip design for drilling wood, chipboard and MDF. This alloy steel drill has a steeper twist and a deeper flute than HSS bits for rapid clearance of waste. Ideal for use in dowelling jigs.5 Piece Lip & Spur Wood Drill Bit Set, these are the preferred cutting tip design for drilling wood, these alloy steel drills have a steeper twist and a deeper flute than HSS bits, for rapid clearance of waste. They are ideal for use in dowelling jigs. Sizes: 4, 5, 6, 8 and 10mm. 4mm: Working Length: 43mm, Overall Length: 75mm.5mm: Working Length: 50mm, Overall Length: 85mm.6mm: Working Length: 52mm, Overall Length: 92mm.8mm: Working Length: 75mm, Overall Length: 120mm.10mm: Working Length: 80mm, Overall Length: 130mm. Faithfull 50199 Lip & Spur Wood Drill Bit Set, 5 Piece 4-10mm